The principle of cosmetic microneedling is to roll the needle evenly over the face to stimulate the appearance of a large number of microscopic channels in the skin, allowing active ingredients to penetrate effectively into the skin, thus awakening and enhancing the skin’s regenerative function. Aesthetic microneedling helps to diminish wrinkles and pigmentation, improve skin texture, even out skin tone and pigmentation, improve skin texture, even out skin tone and increase skin elasticity. Cosmetic microneedling stimulates self-healing of wounds in the dermis, which stimulates the skin and promotes collagen production, resulting in a significant increase in the thickness of the epidermis. However, cosmetic microneedling is mostly manual, invasive treatment, the depth and height of the piercing is dependent on the operator’s technique and experience, and does not belong to the life beauty program, which should be carried out in medical institutions. If you do beauty micro-needling in an irregular beauty place, the operator’s poor grasp of the depth of the micro-needle or sterilization is not in place, it will lead to skin redness, blistering, inflammation, infection, and in serious cases, scarring. In addition, micro-needles open the skin absorption channel at the same time, but also destroy the skin’s self-protection barrier, if improper post-care, will produce more serious sequelae. For example, inadequate sun protection may lead to pigmentation and the formation of new discolorations or red spots.